[Please help] Effect of the hole on Pioneer SE M390 (picture)!

[Zerosix1995]

Hear is the hole on Pioneer SE m390

Can you see the hole?
I want to know the effect of this hole to the sound quality of this full size? (Increase bass?)
And how is the effect of when change size and position to the sound of this headphone?
Sr, my english is bad. I'm a student from Asia :sosad:

[CrowdAds]

[Marvin the Martian]

This is the theory behind the hole.....http://en.wikipedia.org/wiki/Bass_reflex

[jupitreas]

The problem here is that this hole is in fact sealed on this headphone. In other words, this particular hole has no effect on sound at all, it is there purely for decoration.

[Marvin the Martian]

Originally Posted by jupitreas

The problem here is that this hole is in fact sealed on this headphone. In other words, this particular hole has no effect on sound at all, it is there purely for decoration.

Fascinating....it seems you are correct. I haven't used these in untold months, they've just been hanging on the wall....but sure enough, the hole is sealed. I never knew...lol.